Bit confused on moving from Samsung to new Samsung using Smart Switch on PC, when to switch SIM etc.

I have an old Samsung Flip phone and moving to the new Samsung Flip 6.

I took a backup of my old phone on PC using latest update to Smart Switch and want to use that rather than phone to phone as I had selected a few options in the backup that I want to transfer to the new phone.

All the guides I've seen seem to be based around phone to phone, and also skip the part where the SIM card is changed, and also whether or not I initially setup using the old phone, so I'm confused on the process.

This is what I'm doing so far:

• On the old phone (sim card still in it), run WhatsApp backup
• On the old phone run Samsung Cloud backup
• (not sure if I need to run any other backups on the old phone??? I've done the Smart Switch backup to PC as mentioned)

After all backups done are these steps correct?….

• Insert SIM card from old phone into new phone
• Start new phone
• Select "Setup from Android device" in order to transfer over the wifi and settings etc from the old phone
• Sign into whatever Google accounts I need to when prompted
• Agree to any relevant permissions

after this point, do I then connect the usb cable to the PC and do Smart Switch?

Do I need to restore Samsung Cloud or Google backup before or is this automatic?